But you need to be aware that it is not ideal because a universal power adapter has not been designed explicitly for laptop charging. If you don’t have your original laptop charger with you, using a universal power adapter is probably something you can use temporarily. So, if the battery in your mobile device has enough charge, you can connect the appropriate cable between it and your laptop, and it will provide some power for you to continue using your laptop. Most smartphones and tablet devices these days have type C USB ports. If it has type B or C, you can connect these to another device and charge your laptop because they accept power. Check to see what type of USB ports your laptop has. This is really good news, as you can use these ports to send power to your laptop.

The reason is that they can only output power and not receive it from another device.Ī lot of modern laptops have type B and type C USB ports. For example, if you have type A USB ports on your laptop, you will not be able to use these for charging.

You need to understand that there are different USB ports, and you cannot use all of them to charge up your laptop.